Fastener.



Patented May 29, [900.

W. B. H. DOWSE.

F A S T E N E R (Application filed. Jan. 31, 1898.)

(No Model.)

THE cams FEYERS co wumauma. WASHINGTON, D. c,

UNITED STATES PATENT Curios.

\VILLIAM B. II. DOlVSE, OF NElVTON, MASSACHUSETTS, ASSIGNOR TO THE CONSOLIDATED FASTENER COMPANY, OF PORTLAND, MAINE.

FASTEN ER.

SPECIFICATION forming part of Letters Patent No. 650,379, dated May 29, 1900.

Application filed January 31, 1898. Serial No. 668,530. (No model.)

To whom it may concern.-

Be it known that I, WILLIAM B. H. Dowsn, a citizen of 'the United States, residing at Newton, in the county of Middlesex and State.

of Massachusetts, have invented a new andv useful Improvement in Fasteners, of which the following is a full specification.

My invention relates to that class of separable fasteners consisting of a stud or male IO member and a socket or female member; and it consists of an improved stud and socket member, as hereinafter set forth.

Referring to the accompanying drawings, Figure 1 is a plan of my improved stud. Fig. 2 is a side elevation of same. Fig. 3 isa section of my stud member set on any material. Fig. 4 is an elevation of the eyelet used with my stud. Fig. 5 is a sectional view of my stud member held in the dies by which it is riveted to any material. Fig. 6 shows one part of my improved socket or female part, consisting of two pieces, L and M. Fig. 7 shows my improved socket-attaching eyelet N. Fig. 8 is a sectional view, showin parts of the socket member united.

The female part or socket consists of the pieces L and M, which are placed on one side of the fabric to which it is to be attached, and the eyelet N, which is inserted on the under side of the fabric and is upset within the top L, firmly gripping the two parts together. The relation between the interior piece M and the edgep of top L is such that edge 9 flattens and grips the upper edge of the attachingeyelet firmly between it and the under side of the flange of the interior piece M. Thus the interior piece is permitted to receive and hold the stud when it is presented.

My stud member consists of a stud A and an eyelet B.

The stud A is formed up from sheet metal into the shape shown, having the dome-shaped head X, contracted neck Y, and flange Z. The eyelet B is also formed from sheet metal and has the barrel V and flange W, the eyelet-tube being open at both ends. The head the eyelet B is placed on a properly-shaped die 0, as shown, and inserted in the material. The stud A is then placed on the eyelet B, being held in a die D, which has a cavity properly adapted to the shape and size of the head X, and the two parts are pressed together with the result that the barrel V of the eyelet B is upset within the head X of the stud A, so that it cannot be withdrawn through the contracted neck Y. The stud is thus firmly riveted to the material without changing its shape or resiliency.

It will be perceived from the drawings, Fig. 3, that the result of the foregoing operation is that the head of the eyelet is depressed below the roof of the stud and at the same time is expanded to form alocking-head h, with its radial perimeter somewhat angular and bearing against the inner surface of the stud, and its lower portion a contracted so as to stand adjacent to and free from the adjacentlysurrounding metal of the neck of the stud. This construction creates a more yielding connection between the united parts than in instances where the head and neck of the attaching-eyelet fills the neck and dome of the stud.

I purposely make the cavity of my stud-die D a little'less than the height of my stud, so that in the operation of setting the dome X of the stud is pressed down slightly to meet the eyelet and at the same time firmly supported by the die. WVhen the die is removed, the dome springs back by virtue of its resiliency, leaving a space P above the riveted end of the eyelet, as shown in Fig. 3. v

I am aware that resilient studs have been made before, but they have always been made when the attaching-eyelet upsets within. the stud, with an anvil or dome inside, whereby and wherein the riveting-eyelet is clenched. I have discovered that by using a stud of substantial] y the form shown in the accompanying drawings and by making the setting-die properly adapted to the stud, the stud can be properly riveted without using anyinside anvil or retaining-piece and without destroying either its form or its resiliency.

I am well aware that solid or non-resilient studs have been attached in this general manner; but I believe that resilient studs, when and upset within said head and above the minimum contraction of the entrance to the head to form a locking-head h'with its radial perimeter angular and bearing against the inner face of the cap and its lower portion '12, contracted and free from the surrounding metal of the neck of the cap, substantially as and for the purpose specified.

In witness whereof I have hereunto set my hand and seal.

WM. 13. H. DOWSE. [Ls] Witnesses:

A. H. FLANNERY, FRED JOY. 

